Several times my ooma system has entered a never-ending loop of the call waiting tone. This has happened when someone else answers the call on another scout and when the call has been ignored.Today it happened during a conference call and I had to listen to the tone every 10 seconds for the final 20 minutes of the call.

Yes, it happened to me today. I answered the phone on my scout when my wife was on the hub phone. It continued until she finished her conversation. Have to figure out how to fix this.Panasonic kxtg1033s 3 phone system 6.0

Since you both mention you have Scouts in use, your Hubs should be plugged into your home phone wiring. Do you have active service on the phone line? If so, is it configured to forward calls to your ooma, or vice versa?

I do NOT have active service on the line. But I do have the hub "phone" and "wall" connections on the entire house via my alarm system. I have two scouts.If having the hub "phone" on the entire house is the problem...I can fix that easily.Scott